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Proceedings Paper

Positional calibration of galvanometric scanners used in laser Doppler vibrometers
Author(s): M. A. Stafne; Larry D. Mitchell; Robert L. West
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Paper Abstract

The knowledge of where one has measured the response of a structure is sometimes as important as the response measured. This paper describes a method for the calibration of the horizontal and vertical scanners in a laser Doppler vibrometer. The residual of the scanner position with respect to a first-order and second-order regression model will be discussed. Comparisons will be made to vendor measured scanner characteristics. Detailed analysis of the scanner calibration data will result in a very accurate knowledge of where the measured data from a structure is located and directed. Moreover, this knowledge will enhance the accuracy of 3D laser vibrometry.

Paper Details

Date Published: 1 June 1998
PDF: 14 pages
Proc. SPIE 3411, Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (1 June 1998); doi: 10.1117/12.307703
Show Author Affiliations
M. A. Stafne, Virginia Polytechnic and State Univ. (United States)
Larry D. Mitchell, Virginia Polytechnic and State Univ. (United States)
Robert L. West, Virginia Polytechnic and State Univ. (United States)


Published in SPIE Proceedings Vol. 3411:
Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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